Date: Wed, 02 Nov 2005 08:05:25 -0700 (MST) From: "M. Warner Losh" <imp@bsdimp.com> To: grog@freebsd.org Cc: FreeBSD-current@freebsd.org, fbsd-current@mawer.org Subject: Re: Really poor performance on /dev/ttyv* only Message-ID: <20051102.080525.63054093.imp@bsdimp.com> In-Reply-To: <20051101073157.GE18710@wantadilla.lemis.com> References: <20051101070259.GC18710@wantadilla.lemis.com> <4367150C.4030508@mawer.org> <20051101073157.GE18710@wantadilla.lemis.com>
next in thread | previous in thread | raw e-mail | index | archive | help
In message: <20051101073157.GE18710@wantadilla.lemis.com>
"Greg 'groggy' Lehey" <grog@freebsd.org> writes:
: On Tuesday, 1 November 2005 at 18:11:08 +1100, Antony Mawer wrote:
: > On 1/11/2005 6:02 PM, Greg 'groggy' Lehey wrote:
: >> I've just installed -CURRENT on a Dell Inspiron 6000, and I discover
: >> that the keyboard response on virtual terminals (/dev/ttyv*) is very
: >> slow. If I keyboard repeat, the echo to the terminal is jerky, about
: >> 3 or 4 characters at a time with a marked delay in between. Under X
: >> or over the network there's no problem. Has anybody else seen this?
: >> The kernel isn't 100% GENERIC (I've disabled WITNESS and
: >> WITNESS_SKIPSPIN, for example), but I can't see anything that would
: >> explain this behaviour.
: >
: > I've seen this on two FreeBSD 4.7 systems connected via a KVM (sharing
: > with two Windows 2003 servers)... typing at the console of them was
: > almost like typing via ssh on a satellite connection. Connecting via ssh
: > was fine, it was only locally that it was a problem. Resetting the
: > keyboard repeat rate on BSD had no discernible impact.
:
: I'd guess that this is a different situation. FWIW, the Inspiron
: series are laptops, and this is at the keyboard. The machine is brand
: new, and I've never had another version of FreeBSD on it, but I
: suspect it's -CURRENT rather than the laptop.
I don't see it on my current laptop. It must at least be a
combination. Maybe you could track down what the problem is?
Warner
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?20051102.080525.63054093.imp>